InViewer

InViewer is a lightweight and very speedy media viewer! It supports the most common image formats, and also video and audio formats!

InViewer helps users open image files, perform various modifications on them, such as flip and rotate, whilst being able to convert the images to other graphic formats.

From Stefan Wobbe:

Virus and Malware Tests: For security reasons, you should also check out the InViewer download at LO4D.com which includes virus and malware tests. Additional screenshots of this application download may be available, too.

Alternatives

Image ViewersComprehensive listing of image viewing applications for use on the Windows OS. Download links are provided for free, along with editor reviews of the best programs available.

Freeware Image ViewersCheck out some of the freeware downloads available in the picture viewer category. They contain no strings and are available at zero cost.